Team Merging

You are tasked with managing multiple teams in a company. Each team is represented by a unique integer. When two teams merge, they become a single team represented by the id of one of the original teams. Implement a union-find data structure to efficiently manage these team merges and output the size of the resulting team when all merges are processed. Input format: - The first line contains an integer N, representing the number of merges. - The next N lines each contain two integers, A and B, indicating a merge between team A and team B. Output format: - Print a single integer indicating the total number of distinct teams left after all merges. Example: Input: 5 1 2 2 3 3 4 5 6 6 7 7 5 Output: 3